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As of 21:26 EDT

Weather in Jefferson, PA

76°Current weather

Jefferson, Saturday, 8 August, 21:26

Overcast. Feels like 77°. High 84°, low 68°.

Pressure30.00 inHg
Wind7.9 mph SW
Humidity78%
Visibility6.2 mi
Dew point68°
Sun, 0984° / 68°0.13Rain
84 °Rain

Jefferson, Sunday, 9 August

Rain. High 84°, low 68°.

Pressure30.09 inHg
Wind5.4 mph W
Humidity55%
Visibility6.2 mi
Dew point63°
Mon, 1089° / 64°1.12Heavy rain
89 °Heavy rain

Jefferson, Monday, 10 August

Heavy rain. High 89°, low 64°.

Pressure30.03 inHg
Wind12.6 mph SW
Humidity79%
Visibility6.2 mi
Dew point68°
Tue, 1180° / 65°0.29Heavy rain
80 °Heavy rain

Jefferson, Tuesday, 11 August

Heavy rain. High 80°, low 65°.

Pressure30.00 inHg
Wind6.5 mph SW
Humidity74%
Visibility6.2 mi
Dew point67°
Wed, 1277° / 66°0.17Light rain
77 °Light rain

Jefferson, Wednesday, 12 August

Light rain. High 77°, low 66°.

Pressure29.83 inHg
Wind10.1 mph W
Humidity83%
Visibility6.2 mi
Dew point69°
Thu, 1373° / 59°0.07Light rain
73 °Light rain

Jefferson, Thursday, 13 August

Light rain. High 73°, low 59°.

Pressure29.97 inHg
Wind11.1 mph NW
Humidity55%
Visibility—
Dew point55°
Fri, 1475° / 53°0Mostly clear
75 °Mostly clear

Jefferson, Friday, 14 August

Mostly clear. High 75°, low 53°.

Pressure30.06 inHg
Wind4.3 mph NW
Humidity46%
Visibility—
Dew point51°
Sat, 1576° / 52°0Partly cloudy
76 °Partly cloudy

Jefferson, Saturday, 15 August

Partly cloudy. High 76°, low 52°.

Pressure30.24 inHg
Wind5.7 mph NW
Humidity48%
Visibility—
Dew point52°
Sun, 1679° / 53°0Partly cloudy
79 °Partly cloudy

Jefferson, Sunday, 16 August

Partly cloudy. High 79°, low 53°.

Pressure30.15 inHg
Wind3.2 mph NW
Humidity45%
Visibility—
Dew point53°
Mon, 1778° / 59°0.03Light rain
78 °Light rain

Jefferson, Monday, 17 August

Light rain. High 78°, low 59°.

Pressure30.03 inHg
Wind5.4 mph NW
Humidity54%
Visibility—
Dew point58°
Tue, 1881° / 59°0.01Light rain
81 °Light rain

Jefferson, Tuesday, 18 August

Light rain. High 81°, low 59°.

Pressure30.00 inHg
Wind4.7 mph SE
Humidity57%
Visibility—
Dew point62°
Wed, 1984° / 63°0.38Rain
84 °Rain

Jefferson, Wednesday, 19 August

Rain. High 84°, low 63°.

Pressure29.85 inHg
Wind8.9 mph W
Humidity51%
Visibility—
Dew point61°
Thu, 2068° / 58°0.17Rain
68 °Rain

Jefferson, Thursday, 20 August

Rain. High 68°, low 58°.

Pressure29.85 inHg
Wind12.2 mph NW
Humidity69%
Visibility—
Dew point56°
Fri, 2174° / 52°0Clear
74 °Clear

Jefferson, Friday, 21 August

Clear. High 74°, low 52°.

Pressure30.00 inHg
Wind8 mph NW
Humidity44%
Visibility—
Dew point48°
Sat, 2278° / 49°0Overcast
78 °Overcast

Jefferson, Saturday, 22 August

Overcast. High 78°, low 49°.

Pressure30.03 inHg
Wind2.9 mph SW
Humidity42%
Visibility—
Dew point49°
Sun, 2382° / 64°0.03Light rain
82 °Light rain

Jefferson, Sunday, 23 August

Light rain. High 82°, low 64°.

Pressure29.91 inHg
Wind12.7 mph SW
Humidity74%
Visibility—
Dew point69°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Jefferson, PA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Jefferson, PA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.